[clang] Move VFS overlays from HeaderSearchOptions to FileSystemOptions

[jansvoboda11]

No description provided.

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⚠️ C/C++ code formatter, clang-format found issues in your code. ⚠️

You can test this locally with the following command:

git-clang-format --diff 3c02fea737d774bbf174c6b763593ad3e7f56221 d49ef2de83b37156ab73c0028676d9b0425ef2ed --extensions cpp,h -- clang/include/clang/Basic/FileSystemOptions.h clang/include/clang/Lex/HeaderSearchOptions.h clang/include/clang/Serialization/ASTBitCodes.h clang/lib/Frontend/ASTUnit.cpp clang/lib/Frontend/CompilerInstance.cpp clang/lib/Frontend/CompilerInvocation.cpp clang/lib/Frontend/FrontendActions.cpp clang/lib/Lex/HeaderSearch.cpp clang/lib/Serialization/ASTReader.cpp clang/lib/Serialization/ASTWriter.cpp clang/lib/Tooling/DependencyScanning/DependencyScanningWorker.cpp clang/lib/Tooling/DependencyScanning/ModuleDepCollector.cpp

View the diff from clang-format here.

diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index eb1f2e9f9f..b8988a7cf1 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -4958,9 +4958,8 @@ bool CompilerInvocation::CreateFromArgsImpl(
   // Set PGOOptions. Need to create a temporary VFS to read the profile
   // to determine the PGO type.
   if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) {
-    auto FS =
-        createVFSFromOverlayFiles(Res.getFileSystemOpts().VFSOverlayFiles,
-                                  Diags, llvm::vfs::getRealFileSystem());
+    auto FS = createVFSFromOverlayFiles(Res.getFileSystemOpts().VFSOverlayFiles,
+                                        Diags, llvm::vfs::getRealFileSystem());
     setPGOUseInstrumentor(Res.getCodeGenOpts(),
                           Res.getCodeGenOpts().ProfileInstrumentUsePath, *FS,
                           Diags);

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✅ With the latest revision this PR passed the Python code formatter.